2  *  linux/drivers/video/kyro/STG4000OverlayDevice.c
57 	/*clipped on-screen pixel position of overlay */
69 	/* on-screen pixel position of overlay */
152 		return -EINVAL;  in CreateOverlaySurface()
155 	/* Stride in 16 byte words - 16Bpp */  in CreateOverlaySurface()
226 	 * Make sure that LUT not used - ??????  in CreateOverlaySurface()
280 		return -EINVAL;  in SetOverlayBlendMode()
296 	/* Set video stream control */  in EnableOverlayPlane()
298 	tmp |= SET_BIT(1);	/* video stream */  in EnableOverlayPlane()
309 		ulBits--;  in Overlap()
348 	srcDest.ulSrcX2 = ovlWidth - 1;  in SetOverlayViewPort()
349 	srcDest.ulSrcY2 = ovlHeight - 1;  in SetOverlayViewPort()
367 	ulSrc = ulSrcBottom - ulSrcTop;  in SetOverlayViewPort()
368 	ulDest = srcDest.lDstY2 - srcDest.lDstY1;	/* on-screen overlay */  in SetOverlayViewPort()
371 		return -EINVAL;  in SetOverlayViewPort()
377 	ulFxOffset = (srcDest.lDstY2 - srcDest.ulDstY2) << 11;  in SetOverlayViewPort()
379 	ulSrcBottom = ulSrcBottom - (ulFxOffset / ulFxScale);  in SetOverlayViewPort()
380 	ulSrc = ulSrcBottom - ulSrcTop;  in SetOverlayViewPort()
383 	ulDest = srcDest.ulDstY2 - (srcDest.ulDstY1 - 1);  in SetOverlayViewPort()
388 		ulDecimate = ulSrc - ulDest;  in SetOverlayViewPort()
401 		ulSrc = ulSrc - ulDecimated;	/* the number number of lines that will go into the scaler */  in SetOverlayViewPort()
405 …ulVertDecFactor = (63 - ulBits) / (32 - ulBits);	/* vertical decimation factor scaled up to neares…  in SetOverlayViewPort()
410 	ulDacYScale = ((ulSrc - 1) * 2048) / (ulDest + 1);  in SetOverlayViewPort()
431 	ulSrc = srcDest.ulSrcX2 - srcDest.ulSrcX1;  in SetOverlayViewPort()
432 	ulDest = srcDest.lDstX2 - srcDest.lDstX1;  in SetOverlayViewPort()
450 			return -EINVAL;  in SetOverlayViewPort()
453 		ulFxScale = ((ulSrc - 1) << 11) / (ulDest);  in SetOverlayViewPort()
456 		ulFxOffset = ulFxScale * ((srcDest.ulDstX1 - srcDest.lDstX1) + ulClipOff);  in SetOverlayViewPort()
463 		ulFxOffset = ulFxScale * (srcDest.lDstX2 - srcDest.ulDstX2);  in SetOverlayViewPort()
466 		ulSrcRight = srcDest.ulSrcX2 - ulFxOffset;  in SetOverlayViewPort()
474 		/* shift fxscale until it is in the range of the scaler */  in SetOverlayViewPort()
476 		ulScale = (((ulSrcRight - ulSrcLeft) - 1) << (11 - ulhDecim)) / (ulRight - ulLeft + 2);  in SetOverlayViewPort()
480 			ulScale = (((ulSrcRight - ulSrcLeft) - 1) << (11 - ulhDecim)) / (ulRight - ulLeft + 2);  in SetOverlayViewPort()
485 		 * src/dwdest for the scale factor, then we move onto src-1  in SetOverlayViewPort()
510 		ulWidth = ulSrcRight - ulSrcLeft;  in SetOverlayViewPort()
522 		/* input pixels to scaler; */  in SetOverlayViewPort()
526 			return -EINVAL;  in SetOverlayViewPort()
528 		ulExcessPixels = ((((ulScaleLeft - ulSrcLeft)) << (11 - ulhDecim)) / ulScale);  in SetOverlayViewPort()
531 		ulClip -= (ulRight - ulLeft);  in SetOverlayViewPort()
535 			ulClip--;  in SetOverlayViewPort()
569 		     (((ulWidth / 8) - 1) << 23));  in SetOverlayViewPort()
573 		     (((ulWidth / 32) - 1) << 23));  in SetOverlayViewPort()
578 	/* Set Video Window Start */  in SetOverlayViewPort()
582 	/* Set Video Window End */  in SetOverlayViewPort()